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Pampered-Z · 03-12-2006, 08:23 AM

To add to what foff667 stated.

All are good, Cometic Gaskets are handle allot of compression ( boost + Nitris) and are reusable, but Cometic gaskets require specific surface finish (smoother finish then stock) on both the block and heads in order to seal properly. If you want to use then the block and heads will need to go to a machine shop.

I kniow you are not to reuse the head bolts on an LS1 engine, Don't know about the gaskets. E-mail PAGREGGSS, He's the person I use for all my LS1 questions.

03-12-2006, 08:23 AM	#4
Pampered-Z Sliderule / Moderator Join Date: Oct 2004 Location: Catawissa PA Posts: 2,294 iTrader: (1)	To add to what foff667 stated. All are good, Cometic Gaskets are handle allot of compression ( boost + Nitris) and are reusable, but Cometic gaskets require specific surface finish (smoother finish then stock) on both the block and heads in order to seal properly. If you want to use then the block and heads will need to go to a machine shop. I kniow you are not to reuse the head bolts on an LS1 engine, Don't know about the gaskets. E-mail PAGREGGSS, He's the person I use for all my LS1 questions. __________________ 93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada 1) Build it 2) Race it 3) Break it 4) Repeat!!!